Details

Autor(en) / Beteiligte

• Jeong, Hee Jin
• Choi, Ha Kyu
• Kim, Gil Yong
• Song, Young Il
• Tong, Yu
• Lim, Seong Chu
• Lee, Young Hee

Titel

Fabrication of efficient field emitters with thin multiwalled carbon nanotubes using spray method

Ist Teil von

• Carbon (New York), 2006-11, Vol.44 (13), p.2689-2693

Ort / Verlag

Oxford: Elsevier Ltd

Erscheinungsjahr

2006

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Thin multiwalled carbon nanotube (t-MWCNTs)-based field emitters are made by use of a spray method. The number of tube walls is between 2 and 6, with the corresponding outer diameters between 3 and 6 nm. They were dispersed in dichloroethane and sprayed onto metal-deposited indium tin oxide glass. After heat treatment, they were found to be tightly adhered to metal electrode. Excellent field emission characteristics were exhibited, with a large field enhancement factor and low turn-on voltage, comparable to those of singlewalled CNTs. However, the t-MWCNTs demonstrated a significantly lower degradation rate than SWCNTs in the emission current. This high emission stability was attributed to their stable edge structures, similar to conventional large-diameter MWCNTs. Therefore, t-MWCNTs could be utilized as an alternative material for field emitters.